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Braking system with electric brake booster

一种伺服制动器、制动系统的技术，应用在制动器、制动传动装置、运输和包装等方向，能够解决制动系统安装复杂、直径大、昂贵等问题，达到尺寸体积小的效果

Inactive Publication Date: 2012-05-16
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Braking systems with a master cylinder boosted by an electric servo brake with a coaxial ball screw are known, but these brake systems have the disadvantage of a relatively large diameter due to the boosting piston and, therefore, Has the disadvantage of being expensive due to the size of the ball screw
Furthermore, the installation of these braking systems is complicated

Method used

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  • Braking system with electric brake booster
  • Braking system with electric brake booster
  • Braking system with electric brake booster

Examples

Experimental program
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Embodiment Construction

[0027] according to figure 1 and figure 2 , the brake system with a master cylinder assisted by an electric servo brake includes a master cylinder 100, the master cylinder is connected with an electric servo brake 200, the electric servo brake is equipped with an actuator, and the actuator is driven by an electric motor 210 It consists of a reduction gear 211 which controls the translational movement of a transmission piston 220 accommodated in a housing 201 and which acts on the master cylinder 100 in the braking direction (F). The master cylinder 110 is here a tandem master cylinder, the casing 101 of which comprises in its upper part two inlets 103, 104 ( Figure 5 ) to receive the two outlets of the brake fluid reservoir. On this side, two chambers 111 , 121 , one delimited by the primary piston 110 and the other by the secondary piston 120 , are connected to the two brake circuits C1 , C2 . The piston cups (seals) associated with the two pistons and the secondary pist...

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Abstract

Braking system comprising a brake booster (200) with electric motor driving the thrust rod (130) of the piston of the master cylinder (100) through a re-circulating-ball screw connection and actuated by a control rod (230). In the casing (201) connected to the master cylinder (100), the brake booster (200) comprises an actuator piston (220) guided in translational movement by at least two guide pins (311), parallel to the axis (XX) of the master cylinder (100) and translationally driven by a re-circulating-ball screw (225, 226) of which the screw (225) driven by the motor (210) is offset relative to the axis (XX) of the master cylinder (100). The screw collaborates with a nut (226) secured in terms of translational movement to the actuator piston (220) and a bore (221) of the actuator piston (220) houses a boost piston (250) equipped with a reaction disc (240) and with a plunger piston (232) connected to the control rod (230). Return springs (227) are mounted on the guide pins (311) between the casing of the brake booster and the guide sleeve of the actuator piston and / or a return spring (257) applied to the booster piston (250).

Description

technical field [0001] The invention relates to a brake system, which includes a motor servo brake, the servo brake is connected to drive the push rod of the piston of the master cylinder through a ball screw and is actuated by a control rod. Background technique [0002] Braking systems with a master cylinder boosted by an electric servo brake with a coaxial ball screw are known, but these brake systems have the disadvantage of a relatively large diameter due to the boosting piston and, therefore, Has the disadvantage of being expensive due to the size of the ball screw. Furthermore, the installation of these braking systems is complicated. Contents of the invention [0003] The purpose of the present invention is to develop a simple braking system with electric servo brake, which allows to reduce the manufacturing cost and facilitate the operation of the system in the power failure mode, so as to reduce the applied force to braking in case of [0004] To this end, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74
CPCB60T13/745
Inventor P·理查德F·加夫B·卡尼亚克
Owner ROBERT BOSCH GMBH
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